German stopwatch beside a variety of pills,illustrating the relevance of time to medications' effectiveness. Some modern pharmaceuticals release their contents gradually,while others must be taken on a strict schedule to be effective | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Potokar, Dennis D. |
Taille de l’image : | 2520 px × 3136 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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